US2758831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lined metal reduction apparatus
Assignee: EIDP Inc
•
Filing: 1953-05-05
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Granted: 1956-08-14
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Expires: 1973-05-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles H Winter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:10
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; C22B34/14; C22B34/12; C22B34/1263; C22B34/1268; C22B34/1272; Y; Y10; Y10S; Y10S266/00; Y10S266/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A METAL REDUCTION APPARATUS COMPRISING IN COMBINATION A REACTOR, INLET AND OUTLET MEANS THEREFOR, A REMOVABLE, OPEN-ENDED SHEET METAL LINER FOR RETAINING REACTANTS AND REACTION PRODUCTS WITHIN SAID REACTOR DISPOSED OVER THE INTERNAL SURFACES THEREOF AND SHAPED TO COINCIDE WITH THE ENTIRE CONFIGURATION OF SAID SURFACES, SECURING MEANS CARRIED BY SAID LINER TO FACILITATE ITS
Claim 2
Dependent Claim
55 words
A METAL REDUCTION APPARATUS COMPRISING IN COMBINATION A REACTOR, INLET AND OUTLET MEANS THEREFOR, A REMOVABLE, OPEN-ENDED SHEET METAL LINER FOR RETAINING REACTANTS AND REACTION PRODUCTS WITHIN SAID REACTOR DISPOSED OVER THE INTERNAL SURFACES THEREOF AND SHAPED TO COINCIDE WITH THE ENTIRE CONFIGURATION OF SAID SURFACES, SECURING MEANS CARRIED BY SAID LINER TO FACILITATE ITS
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |